Direct intramolecular aminoboration of sulfonamidoallenes was realized using BCl₃ as a boron source. The reactions benefited from the interaction between BCl₃ and sulfonamides and provided a variety of borylvinyl heterocycles in good isolated yields. When chiral substrates were involved in the reactions, high stereoselectivity was observed, as can be ascertained by single-crystal X-ray diffraction experiments. Derivatization of the thus-obtained borylvinyl compounds proceeded readily, and different functionalities could be obtained via oxidation, halogenation, and Suzuki coupling reactions.

中文翻译：

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艾伦的直接分子内氨基硼化。

磺酰氨基丙二烯的直接分子内氨基硼化是使用BCl ₃作为硼源实现的。该反应得益于BCl ₃和磺酰胺之间的相互作用，并以良好的分离产率提供了各种硼烷基乙烯基杂环。当手性底物参与反应时，观察到高的立体选择性，这可以通过单晶X射线衍射实验确定。如此获得的硼乙烯基化合物的衍生化容易进行，并且可以通过氧化，卤化和Suzuki偶联反应获得不同的官能度。